Fertilizer Spreader Disc Control Using Multi-Plane Density Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing material spreading systems on agricultural land lack precision in adjusting discharge devices due to limited detection capabilities, allowing for only one detection plane, which hinders accurate distribution of materials.
Innovation Solution
A fertilizer spreader system that evaluates detection waves reflected by the material to be spread, determining density distribution in two detection planes spaced apart, allowing for precise adjustment of discharge device parameters such as delivery point, speed, and angle to achieve targeted distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor arrangement is used to detect material to be spread by receiving detection waves reflected by the material, then the material distribution can be monitored, but the detection precision is limited to only one detection plane
Solution Approach 1:
The patent transitions from a single detection plane to multiple detection planes by adjusting the reflection distance parameter. The control device evaluates detection wave intensity at different reflection distances to determine material density distribution in multiple spaced-apart detection planes, thereby adding a spatial dimension to the detection capability and enabling three-dimensional material distribution monitoring.
2Manufacturing precision
If discharge device setting parameters are adjusted based on single-plane sensor signals, then material distribution can be controlled, but the adjustment accuracy is insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the control device continuously monitors material density distribution in multiple detection planes and adjusts discharge device setting parameters accordingly. The control device receives sensor signals, evaluates detection wave intensity at different reflection distances, and modifies discharge parameters to achieve the desired material distribution, creating a closed-loop control system.
Solution Approach 2:
The patent enhances the feedback information dimension by incorporating multiple detection planes. The control device uses density distribution data from multiple spaced-apart planes to make more informed adjustments of discharge parameters, thereby improving adjustment accuracy through richer, multi-dimensional feedback information.
3Measurement precision
If detection wave intensity is evaluated at only one reflection distance, then the sensor signal can be obtained simply, but the material density distribution cannot be determined accurately
Solution Approach 1:
The patent adds the reflection distance dimension to the detection process. Instead of evaluating detection wave intensity at a single fixed distance, the control device evaluates intensity across multiple reflection distances corresponding to different detection planes. This dimensional expansion enables accurate determination of material density distribution while maintaining a relatively simple sensor arrangement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the precision of material distribution on agricultural land by accurately adjusting discharge device settings based on density distribution in multiple detection planes, improving the accuracy of material spreading.
Implementation Method 1
a sensor arrangement (18) which is designed to detect the material to be spread (SG1, SG2) discharged by the discharge device (14) by receiving detection waves reflected by the material to be spread (SG1, SG2)
Data Source
AI summary
The invention relates to a fertilizer spreading machine for spreading granular fertilizer on an agricultural land, comprising: a discharge device having at least one disc arrangement which is designed to discharge fertilizer onto the agricultural land, a sensor arrangement comprising a plurality of sensors, wherein each of the plurality of sensors is designed to detect the fertilizer discharged by the discharge device by emitting detection waves in the direction of the fertilizer discharged by the discharge device and receiving detection waves reflected by the fertilizer and to provide a sensor signal dependent on the intensity of the detection waves reflected by the fertilizer, and a control device which is designed to achieve an intended fertilizer distribution on the agricultural land depending on the sensor signals provided by sensors of the sensor arrangement causes a change in the disc speed on one or more spreading discs of the disc arrangement and/or the point at which the fertilizer is delivered to one or more spreading discs of the disc arrangement.